Math CentralQuandaries & Queries


Question from Marissa, a student:
The angles in a triangle measure 7x-1, 18x+2, and 5x+10. Determine whether the triangle is acute, obtuse, or right. State your reasons clearly.


What is the sum of these three expressions?

What is the sum of the angles in a triangle?

What are the angles? (It doesn't work out in very round numbers)

What sort of triangle must it be?

Good Hunting!


About Math Central


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS